EP 0722011 B1 20000209 - Method of making tissue, newsprint, paper or paperboard
Title (en)
Method of making tissue, newsprint, paper or paperboard
Title (de)
Verfahren zur Herstellung von Tissuepapier, Zeitungsdruckpapier, Papier oder Karton
Title (fr)
Procédé de fabrication de papier tissu, papier journal, papier ou carton
Publication
Application
Priority
- US 37092495 A 19950110
- US 37094195 A 19950110
Abstract (en)
[origin: EP0722011A1] An improved paper furnish composition comprising an aqueous cellulosic furnish, a high molecular weight anionic polymer, and a modified lignin wherein the ratio of the anionic polymer to the modified lignin is from about 10:1 to 1:10 on an active basis is disclosed. A process employing this composition for making tissue, newsprint, paper or paperboard having improved drainage, retention, or formation and combinations thereof which enhance the pressing and drying operations of a paper machine is also provided. Preferably, the anionic polymer is added to the furnish prior to a shear stage, and the modified lignin is added subsequently.
IPC 1-7
IPC 8 full level
C08L 97/02 (2006.01); C08L 97/00 (2006.01); D21H 17/23 (2006.01); D21H 17/37 (2006.01); D21H 17/42 (2006.01); D21H 23/14 (2006.01)
CPC (source: EP KR)
D21H 17/23 (2013.01 - EP KR); D21H 17/37 (2013.01 - EP); D21H 17/42 (2013.01 - EP KR); D21H 23/14 (2013.01 - EP); D21H 27/002 (2013.01 - KR)
Designated contracting state (EPC)
BE DE DK ES FR GB IT NL SE
DOCDB simple family (publication)
EP 0722011 A1 19960717; EP 0722011 B1 20000209; AU 4091896 A 19960718; AU 691375 B2 19980514; CA 2166838 A1 19960711; DE 69515016 D1 20000316; DE 69515016 T2 20000914; DK 0722011 T3 20000724; ES 2145226 T3 20000701; JP H08246387 A 19960924; KR 960029536 A 19960817; NZ 280717 A 19960528
DOCDB simple family (application)
EP 95309388 A 19951222; AU 4091896 A 19960109; CA 2166838 A 19960109; DE 69515016 T 19951222; DK 95309388 T 19951222; ES 95309388 T 19951222; JP 210496 A 19960110; KR 19960000233 A 19960109; NZ 28071795 A 19951220